diff mod_http_oauth2/mod_http_oauth2.lua @ 5214:d5492bc861f6

mod_http_oauth2: Remove authorization codes after use RFC 6749 section 4.1.2 says: > The client MUST NOT use the authorization code more than once. Thus we clear it from the cache after use.
author Kim Alvefur <zash@zash.se>
date Mon, 06 Mar 2023 16:53:27 +0100
parents dc0f502c12f1
children 6a27effb3ef0
line wrap: on
line diff
--- a/mod_http_oauth2/mod_http_oauth2.lua	Mon Mar 06 16:49:43 2023 +0100
+++ b/mod_http_oauth2/mod_http_oauth2.lua	Mon Mar 06 16:53:27 2023 +0100
@@ -265,6 +265,9 @@
 	end
 	local code, err = codes:get(params.client_id .. "#" .. params.code);
 	if err then error(err); end
+	-- MUST NOT use the authorization code more than once, so remove it to
+	-- prevent a second attempted use
+	codes:set(params.client_id .. "#" .. params.code, nil);
 	if not code or type(code) ~= "table" or code_expired(code) then
 		module:log("debug", "authorization_code invalid or expired: %q", code);
 		return oauth_error("invalid_client", "incorrect credentials");